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				<h1 class="content-heading">
                ZCC Loves RPG                </h1>
                <p>时间限制：40s&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  空间限制：512MB</p>			</div>
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                                <h3>题目描述</h3><p><div>ZCC is playing a RPG game named &ldquo;kenji&rsquo;s life VI&rdquo;.</div>
<div>In this game, as an advanturer, ZCC has N kinds of energy, labeled 1 to N. Before set off for an adventure, ZCC can charge some of his energy, which allow he to set the amount of every kind of energy (a_i) a non-negative integer arbitrarily. Different kind of energy is set independently.</div>
<div>When different energy mix, they become unstable. If there exist two integers u and v (u&le;v), where a_u, a_u+1, ..., a_v are all positive number, and sum of those v-u+1 number exceed K, a horrific explosion occurs, and of course, Game Over.</div>
<div>During the adventure, the story may develop differently depending on the amount of a certain kind of energy. Sometimes there will be some CGs, but some of CGs may only appear in some certain sub-story.</div>
<div>ZCC has played this game many times, but failed to collect some of the CGs. Now he wonders, How many kinds of CGs is collectable?</div>
<div>The Scenario is given in the form of C++ like code.</div>
<div><img src="../file/3842_0.jpg" width="576" height="204" alt="" /></div>
<div></div>
<div></div>
<div>As an explanation:</div>
<div>The Scenario is presented as a non-type function game(n, k).</div>
<div>game(n, k) has 2 arguments, n and k, which are actually 2 constants. n is the number of energy type available, k is the limitation of sum of consecutive positive number. There may be 3 types of statement:</div>
<div>1.cg(p1), means a CG numbered p1 appears here.</div>
<div>2.if (a[p1] &gt;= p2) &lt;statement&gt; [else &lt;statement&gt;], is just like the branch statement in other programming languages. else is matched with the nearest if, just like the way C++ works.</div>
<div>3.{ &lt;statements&gt;* }, a block contains zero, one or several statements.</div>
<div>Note that though the scenario is guaranteed to satisfy the grammar above, the code-style(space, bracket, line break) may not strictly obeys the explanation above.</div>
<div></div>
<p></p></p><hr/><h3>输入格式</h3><p><div>
<div>A scenario with total length do not exceed 3MB.</div>
<div>It&rsquo;s guaranteed:</div>
<div>n&le;10^5;&nbsp;</div>
<div>in cg(p1), p1 is a non-negative number between 0 and 2^20-1;</div>
<div>in if (a[p1] &gt;= p2), 1&le;p1&le;n，0&le;p2&le;10^9.</div>
</div>
<p></p></p><hr/><h3>输出格式</h3><p><div>
<div>An integer: the number of CGs collectable.</div>
</div>
<p></p></p><hr/><h3>样例输入</h3><pre>game(3, 1){
  cg(0);
  if (a[1] >= 1)
    cg(1);
  else if (a[1] >= 2) cg(2);
  if (a[2] >= 1)
    if (a[3] >= 1) cg(3); 
    else cg(4);
  {cg(0);}
}</pre><hr/><h3>样例输出</h3><pre>3</pre><hr/><h3>提示</h3><p><div>CGs collectable are CG#0, CG#1 and CG#4.</div>
<div>Though CG#0 appears 2 times, the answer is 3, instead of 4.</div>
<div></div>
<p></p></p><hr/><h3>题目来源</h3><p>By 镇海中学</p>
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